近50年来人类活动对椒江河口河床演变影响

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1、ABSTRACTinfluenceofhumanactivitiesThispaperanalyzedtheengineeringmeasuresimpactsorlJiaojiangEstuaryatfirst，AftertheConstruction，TheflowofYongningriverreducedandYongningriverappeareddeposition，andthentheJiaojiangEstuaryappeareddepositionSothechannelreg

2、ulationprojectionofJiaojiangEstuary，thecomprehensivemanagementengineeringofbothYongningriverandJiaojiangriverwerestartedaftertheseprojects，theflowvelocityandtheratiooftidalvolumeinsouthchannelincreased．andtbesouthchannelscourssteadily,butthenortl㈣clnn

3、elischangeableThechangeoftheestuarychannelwillachievenewequilibriumT11㈣thpaperanalyzedtheeffectsofsandminingactivityollJiaojiangEstuary,itStrengthentheestuarinetidalcurrentpower．Inthisarticle，thedataofwaterdepthandtopographyinJiaojiangEstuarywereproce

4、ssedwiththesurfer．ArcGISsoftware，fromtheresultsofthedata．itthoughtthataftertheimplementationofprojects，erosioaratesofJiaojiangEstuaryhadgonethroughdfisprocessofslow—speed—slowInaddition，thisarticleannlyzedthemechanismofscouringandsiltingofthefiverbedo

5、fJiaojiangEstuary,thehumanactivitieschangedtheJiaojiangEstuarybedboundaryconditions，causedchangesinthedynamicconditionsandsedimenttransportprocessTheRiverbedalsomadeacoffespondingadjustmentHumanprojectswerenotindependentofeachotherwithoutcontact，atthe

6、beginningofChangtanreservoirconstruction，Becausetheprojecthadnotkeptpacewithothers，resultinginlaterseriesofquestion，causingtheothersubsequentregulationTherefore，beforethecommencementofworksinthefiature．wemustconsiderallthepossibleeffects，advanceplanni

7、ng，minimizeitsnegativeeffectsandmaximizethepositivebenefitsKEYWORDS：JiaojiangEstuary；RenovationProject；ReservoirofUpstream目录摘要⋯1ABSTRACT．⋯．．111目求⋯．Vl绪论1ll研究意义12研究进展⋯⋯⋯3I21人类活动对河口地区影响研究⋯3122椒{I：州L】人类活动影响研究⋯⋯5l3研究内容⋯7I4研究方法和资料收集⋯7141研究方法7l4．2强抖收集815小结82

8、椒江河口水动力泥沙条什3椒江河几主要人类活动简介⋯184人类活动对椒江河口的影响224l长潭水库影响⋯⋯224．2椒江FI内航道整治工程影响⋯2443水宁江、般订’综台治理l一程影响⋯254．31对特征潮位的影响⋯25432对潮流的影响⋯⋯⋯264．33对含沙量的影叫⋯⋯⋯284．34对输沙量的影响⋯⋯⋯⋯⋯30435对悬沙粒度参数的影响314．36对河床冲淤的影响324．4江道采砂影响⋯⋯⋯⋯⋯⋯349●57一．一流汐沙结径涮泥小14．2博博伸加舢～～程一～¨I一。程理一～～工治